A safe and easy universal acid/base indicator. As the pH of a solution increases, red cabbage juice changes gradually from red to green. By matching the color of the solution to the included chart, the pH of a solution can be determined. Safer than phenolphthalein. This 20 gram bottle of powdered extract is enough to prepare five gallons of indicator solution!

I bought Jiffy Juice in hopes that I could have the professors use it in place of Cobalt Chloride in a spectrometer lab that just uses dilutions. I am the one that works with the harmful CoCl2 when making the stock from powder form and then all the liters of dilutions. I am so very happy to say that the Jiffy Juice is a fine substitute and produced the desired results when the parameters were adjusted a little on the spec. No more hazardous materials for me and the environment. Just down the drain. Thank you!

I use the red cabbage extract for a Harry Potter potions class, which serves as an introduction to acids, bases and neutrals. Try it with all different clear liquids. Magical colors, so easy, but it's all SCIENCE!

This product was satisfactory and could be a great convenience product. I expected it to produce a brighter or darker color than boiling red cabbage at home, but it did not. It might, if you mixed a much stronger solution.

Red Cabbage for Bromothymol Blue is an excellent "organic" way to display the use of Nature's colors to take the place of some industrial made compound with some kind of mystic powers. The teaching opportunity to help revile the differenced of acids and bases with nature's colors is clear in the most basic way.
pH may be a negative logarithm and many steps away but the basic understanding can begin in the home garden.

It is important for special education students to experience science. The red cabbage indicator is an excellent way for students to remember chemical reactions while learning important science facts. It always surprises them when the reaction takes place. This becomes an embedded experience they always remember.

NGSS

This product will support your students' understanding of the Next Generation Science Standards (NGSS)*, as shown in the table below.

Elementary

Middle School

High School

2-PS1-1

Students can use Red Cabbage Extract in an investigation to describe and classify different kinds of materials by their observable properties.

2-PS1-2

Students can gather data to analyze from an investigation where they use Red Cabbage Extract to test different materials to determine which have the properties that are best suited for an intended purpose.

5-PS1-3

Students can use Red Cabbage Extract to make observations and measurements to identify materials based on their properties.

MS-PS1-2

Students can use Red Cabbage Extract in an investigation to analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred

DCI-MS/ETS1.B: Developing Possible Solutions.

A solution needs to be tested, and then modified based on test results in order to improve it.

HS-PS1-7

Students can use Red Cabbage Extract to construct and revise an explanation for the outcome of a simple chemical reaction based on the outermost electron states of atoms, trends in the Periodic Table and knowledge of the patterns of chemical properties.

Suggested Science Idea(s)

2-PS1-1 2-PS1-2 5-PS1-3 MS-PS1-2 DCI-MS/ETS1.B HS-PS1-7

Students can use Red Cabbage Extract as a pH indicator. Younger students can simply observe the color changes to understand the concept of Acids and bases. Older students can test known substances to create their own pH indicator card with approximate numerical value and color chart.

* NGSS is a registered trademark of Achieve. Neither Achieve nor the lead states and partners that developed the Next Generation Science Standards were involved in the production of, and do not endorse, this product.